package com.atguigu.gulimall.auth.controller;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.TypeReference;
import com.atguigu.common.constant.AuthServerConstant;
import com.atguigu.common.utils.HttpUtils;
import com.atguigu.common.utils.R;
import com.atguigu.gulimall.auth.feign.MemberFeignService;
import com.atguigu.common.vo.MemberResponseVo;
import com.atguigu.gulimall.auth.vo.SocialUser;
import lombok.extern.slf4j.Slf4j;
import org.apache.http.HttpResponse;
import org.apache.http.util.EntityUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestParam;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.util.HashMap;
import java.util.Map;

/**
 * 处理社交登录请求
 *
 * @title: OAuth2Controller
 * @Author syh
 * @Date: 2022/7/7 10:25
 * @Version 1.0
 */

@Slf4j
@Controller
public class OAuth2Controller {

    private final String client_id = "2078900187d8d4a7c87d21164a21cef910d7c41c643a60b90e0c7e5d4cef747a";
    private final String client_secret = "26efb541283b4b05e1ce1d25fc7a68ffb91b514aa5cb3dc3284e767af0dc5d5b";
    private final String grant_type = "authorization_code";
    private final String redirect_uri = "http://authto.gulimall.com/oauth2.0/gitee/success";

    @Autowired
    MemberFeignService memberFeignService;

    //<a href="https://gitee.com/oauth/authorize?client_id=2078900187d8d4a7c87d21164a21cef910d7c41c643a60b90e0c7e5d4cef747a&redirect_uri=http://auth.gulimail.com/oauth2.0/gitee/success&response_type=code&scope=user_info%20emails">
    @GetMapping("/oauth2.0/gitee/success")
    public String gitee(@RequestParam("code") String code, HttpSession session,
                        HttpServletResponse servletResponse,
                        HttpServletRequest request) throws Exception {
        Map<String, String> header = new HashMap<>();
        Map<String, String> query = new HashMap<>();

        Map<String, String> map = new HashMap<>();
        // code:610efde25256dbe6b74ac5f926dab64b429e64b732c5e6ad734f43fbc3b04928
        map.put("client_id", "2078900187d8d4a7c87d21164a21cef910d7c41c643a60b90e0c7e5d4cef747a  ");
        map.put("client_secret", "26efb541283b4b05e1ce1d25fc7a68ffb91b514aa5cb3dc3284e767af0dc5d5b");
        map.put("grant_type", "authorization_code");
        map.put("redirect_uri", "http://authto.gulimall.com/oauth2.0/gitee/success");
        map.put("code", code);

        //1、根据用户授权返回的code换取access_token
//        HttpResponse response = HttpUtils.doPost("https://gitee.com", "/oauth/token?grant_type" + grant_type + "&code=" + code + "&client_id=" + client_id + "&redirect_uri=" + redirect_uri + "&client_secret=" + client_secret, "post", header, query, new HashMap<>());
        HttpResponse response = HttpUtils.doPost("https://gitee.com", "/oauth/token", "post", header, query, map);
        //2、处理
        if (response.getStatusLine().getStatusCode() == 200) {
            //获取到了access_token
            String json = EntityUtils.toString(response.getEntity());// 获取到json串
            //String json = JSON.toJSONString(response.getEntity());
            SocialUser socialUser = JSON.parseObject(json, SocialUser.class);

            //知道了哪个社交用户
            //1）、当前用户如果是第一次进网站，自动注册进来（为当前社交用户生成一个会员信息，以后这个社交账号就对应指定的会员）
            //登录或者注册这个社交用户
            System.out.println("登录后用code换取的token值：" + socialUser.getAccessToken());
            //调用远程服务
            R oauthLogin = memberFeignService.oauth2Login(socialUser);
            if (oauthLogin.getCode() == 0) {
                MemberResponseVo data = oauthLogin.getData("data", new TypeReference<MemberResponseVo>() {
                });
                log.info("登录成功：用户信息：\n{}", data.toString());

                //1、第一次使用session，命令浏览器保存卡号，JSESSIONID这个cookie
                //以后浏览器访问哪个网站就会带上这个网站的cookie
                //子域之间； gulimall.com  auth.gulimall.com  order.gulimall.com
                //发卡的时候(指定域名为父域名)，即使是子域系统发的卡，也能让父域直接使用。
                //TODO 1、默认发的令牌。当前域（解决子域session共享问题）
                //TODO 2、使用JSON的序列化方式来序列化对象到Redis中
//                session.setAttribute(AuthServerConstant.LOGIN_USER, data);
                session.setAttribute(AuthServerConstant.LOGIN_USER, data);

                //2、登录成功跳回首页
                return "redirect:http://gulimall.com";
            } else {
                return "redirect:http://auth.gulimall.com/login.html";
            }
        } else {
            return "redirect:http://auth.gulimall.com/login.html";
        }
    }
}


